alert tcp $EXTERNAL_NET any -> $HOME_NET 111 (
msg:"GPL RPC portmap ypserv request TCP";
flow:to_server,established;
content:"|00 01 86 A0|"; depth:4; offset:16;
content:"|00 00 00 03|"; within:4; distance:4;
byte_jump:4,4,relative,align;
byte_jump:4,4,relative,align;
content:"|00 01 86 A4|"; within:4;
content:"|00 00 00 00|"; depth:4; offset:8;
reference:arachnids,12;
reference:bugtraq,5914;
reference:bugtraq,6016;
reference:cve,2000-1042;
reference:cve,2000-1043;
reference:cve,2002-1232;
classtype:rpc-portmap-decode;
sid:2101276; rev:15;
metadata:created_at 2010_09_23, cve CVE_2000_1042, signature_severity Informational, updated_at 2019_07_26;
)